74ABT16245CSSC Equivalent & Substitute Parts

Part Overview

The 74ABT16245CSSC is a 16-bit bus transceiver with non-inverting logic, manufactured by onsemi in a 48-SSOP package. This component features 2 elements with 8 bits per element, 3-state output capability, and operates across a 4.5V to 5.5V supply voltage range. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this functional specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ABT16245CSSC
Manufacturer	onsemi
Logic Type	Transceiver, Non-Inverting
Number of Elements	2
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	32mA, 64mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Supplier Device Package	48-SSOP
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74ABT16245CSSC is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

Logic Type: Transceiver, Non-Inverting
Number of Elements: 2
Number of Bits per Element: 8
Output Type: 3-State
Voltage - Supply: 4.5V ~ 5.5V
Current - Output High, Low: 32mA, 64mA (primary specification)
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
Package / Case: 48-BSSOP or equivalent 48-pin SSOP footprint

Direct Substitutes maintain identical electrical specifications and compatible packaging (48-SSOP or 48-BSSOP).

Similar Substitutes maintain core electrical specifications but may differ in:

Package variant (48-TSSOP, 48-TFSOP, 48-TVSOP, 48-CFP)
Output current specifications (reduced current ratings)
Operating temperature range (extended military-grade specifications)
Series designation (74ABT vs. 74ABTH vs. 54ABT)

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Type	Current (High/Low)	Voltage Supply	Temp Range	Package	Product Status	RoHS Status
74ABT16245CSSC	onsemi	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete	REACH Unaffected
SN74ABT16245ADL	Texas Instruments	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	ROHS3 Compliant
SNJ54ABT16245AWD	Texas Instruments	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-55°C ~ 125°C	48-CFP	Active	ROHS3 Compliant
74ABT16245BDGG,118	Nexperia USA Inc.	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active	ROHS3 Compliant
74ABTH162245ADGG,1	Nexperia USA Inc.	Non-Inverting	2 / 8	3-State	32mA, 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active	ROHS3 Compliant
CABT16245AMDLREP	Texas Instruments	Non-Inverting	2 / 8	3-State	24mA, 48mA	4.5V ~ 5.5V	-55°C ~ 125°C	48-BSSOP	Active	ROHS3 Compliant
SN74ABT162245DGGR	Texas Instruments	Non-Inverting	2 / 8	3-State	12mA, 12mA; 32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active	ROHS3 Compliant
SN74ABT162245DL	Texas Instruments	Non-Inverting	2 / 8	3-State	12mA, 12mA; 32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	ROHS3 Compliant
SN74ABT162245DLR	Texas Instruments	Non-Inverting	2 / 8	3-State	12mA, 12mA; 32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active	ROHS3 Compliant
SN74ABT16245ADGGR	Texas Instruments	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active	ROHS3 Compliant
SN74ABT16245ADGVR	Texas Instruments	Non-Inverting	2 / 8	3-State	32mA, 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TVSOP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

SN74ABT16245ADL (Texas Instruments) is the primary direct substitute. It maintains identical electrical specifications (32mA, 64mA output current) and operates within the same temperature range (-40°C ~ 85°C). The 48-BSSOP package is footprint-compatible with the original 74ABT16245CSSC. This part is in active production status with ROHS3 compliance.

Package-Variant Substitutes (Electrical Equivalence with Different Footprints):

SN74ABT16245ADGGR (Texas Instruments) and 74ABT16245BDGG,118 (Nexperia USA Inc.) provide electrical equivalence with 48-TSSOP packaging. These parts maintain the 32mA, 64mA output current specification and -40°C ~ 85°C operating range. PCB layout modification is required for these variants.

SN74ABT16245ADGVR (Texas Instruments) offers the same electrical specifications in a 48-TVSOP package with reduced footprint width (4.40mm vs. 7.50mm).

Extended Temperature Substitutes:

SNJ54ABT16245AWD (Texas Instruments) extends the operating temperature range to -55°C ~ 125°C (military-grade specification) while maintaining electrical equivalence. The 48-CFlatPack (48-CFP) package requires different PCB layout considerations.

CABT16245AMDLREP (Texas Instruments) provides extended temperature operation (-55°C ~ 125°C) with reduced output current specifications (24mA, 48mA). This part is suitable only where the lower current rating meets system requirements.

Reduced Current Substitutes:

74ABTH162245ADGG,1 (Nexperia USA Inc.) and SN74ABT162245DL/DLR (Texas Instruments) feature reduced output current specifications. These parts are suitable only where system design accommodates lower drive capability.

All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT16245ADL directly replace 74ABT16245CSSC without PCB modification?

A: Yes. SN74ABT16245ADL is footprint-compatible in the 48-BSSOP package and maintains identical electrical specifications (32mA, 64mA output current, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range). No PCB layout changes are required.

Q: What is the difference between 48-BSSOP and 48-TSSOP packages?

A: Both are 48-pin surface-mount packages with different body widths. 48-BSSOP has a 0.295" (7.50mm) width, while 48-TSSOP has a 0.240" (6.10mm) width. PCB footprints are not interchangeable; layout modification is necessary when switching between these package types.

Q: Are the 74ABTH series parts (such as 74ABTH162245ADGG,1) compatible substitutes?

A: The 74ABTH series maintains the same logic type and pin configuration but features different output current specifications (32mA, 12mA vs. 32mA, 64mA). Substitution is valid only if system design accommodates the reduced low-side output current (12mA instead of 64mA).

Q: Why do some parts list dual current specifications (e.g., "12mA, 12mA; 32mA, 64mA")?

A: Dual specifications indicate multiple operational modes or device variants within the same part number. Verify the specific datasheet to confirm which specification applies to your application.

Q: Is SNJ54ABT16245AWD suitable for standard commercial temperature applications?

A: SNJ54ABT16245AWD is rated for -55°C ~ 125°C (military-grade), which exceeds standard commercial requirements (-40°C ~ 85°C). It is suitable for commercial applications but represents over-specification. Use SN74ABT16245ADL for standard commercial temperature ranges.

Q: What is the inventory status of substitute parts?

A: SN74ABT16245ADL (3020 pcs), SN74ABT162245DLR (2839 pcs), and SN74ABT16245ADGGR (3100 pcs) maintain the highest inventory levels. Verify current availability with your component supplier before design finalization.

Q: Are all listed substitutes ROHS3 compliant?

A: All active substitute parts listed are ROHS3 compliant. The original 74ABT16245CSSC (onsemi, obsolete) has REACH unaffected status. Verify compliance requirements for your specific application and regulatory jurisdiction.

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